Powers: In his human form, Hackett did not possess any superhuman powers. However, as a police officer, his job may have required him to remain in good physical condition. Also, the fact that he was an avid hunter may mean that he was skilled in the use of different types of guns.
By using one of the "Werewolf Rings", Hackett could change into a werewolf, a form which is a hybrid of human and wolf. In this form he possessed enhanced human physical abilities (strength, speed, stamina, agility, reflexes, etc.). He may have had enhanced senses as well but this was not demonstrated.
#6 - 'Carnival of Fear' #8 - 'The Lurker Behind The Door' #9 - 'Terror Beneath the Earth' #10 - 'The Sinister Secret of Sarnak' #17 - 'The Behemoth' #18 - 'Murder by Moonlight' #20 - 'Eye of the Wolf' #21 - 'One Wolf's Cure... Another's Poison'